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ONSEMI UC3842BNG PWM Controller
The UC3842BNG is a high-performance, fixed-frequency current-mode PWM controller designed for off-line and DC-DC converter applications. It offers a cost-effective solution with minimal external components, featuring a trimmed oscillator for precise duty cycle control, a temperature-compensated reference, a high-gain error amplifier, a current sensing comparator, and a high-current totem pole output suitable for driving power MOSFETs. The device includes protective features such as undervoltage lockouts with hysteresis, cycle-by-cycle current limiting, programmable output deadtime, and a latch for single pulse metering. It is ideal for power management and industrial applications.
ONSEMI UC3842BNG PWM Controller Specifications:
- Maximum Power Dissipation: SOIC-14 Case 862 mW, Thermal Resistance Junction-to-Air 145 °C/W
- Operating Temperature Range: -25°C to +85°C (UC3842BNG), -40°C to +105°C (UC3842BV), 0°C to 70°C (UC2842BNG), -25°C to +85°C (UC2842BV)
- Reference Output Voltage: 5.0 V ±1% at 1 mA, Line Regulation: 20 mV, Load Regulation: 30 mV
- Oscillator Frequency: Guaranteed at 250 kHz, With Temperature Variation: ±6% at 50 kHz, ±10% at 250 kHz
- Output Current: High-current totem pole, Peak drive current up to 1.0 A, Rise/Fall time approx. 50 ns
- Undervoltage Lockout: UC3842BNG thresholds at 16 V/on and 10 V/off, UC3842BV thresholds at 8.4 V/on and 7.6 V/off
- Protection Features: Cycle-by-cycle current limit, Programmable deadtime, Single pulse latch, UVLO with hysteresis
- Package Options: SOIC-8, SOIC-14, PDIP-8, with Pb-Free options
- Output Voltage Swing: High state up to 13.5 V, Low state down to 0.4 V, with typical rise/fall times around 50 ns
Buy the ON Semiconductor Series UC3842 PWM Controller: UC3842BNG
Enhance your power management designs with the high-performance ON Semiconductor Series UC3842BNG PWM controller. Designed for off-line and DC-DC applications, it features precise duty cycle control, integrated thermal and undervoltage protections, cycle-by-cycle current limiting, and a robust high-current output stage. Its minimal external component requirement makes it a cost-effective and reliable choice for industrial and power supply projects. Get yours now online and ensure your power conversion systems operate with maximum efficiency and safety.
Order your ON Semiconductor Series UC3842BNG high-performance PWM controller today and give your power conversion projects the reliable efficiency they need.
Frequently Asked Questions
Where can I buy ONSEMI UC3842BNG?
You can click on the BUY or RFQ button to purchase UC3842BNG from an authorized ONSEMI distributor.
How do I troubleshoot issues or seek technical support for part UC3842BNG?
You can download the UC3842BNG datasheet or visit the ONSEMI website for support.
Who is the manufacturer of UC3842BNG?
ONSEMI